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United States Patent | 6,049,340 |
Matsushita ,   et al. | April 11, 2000 |
The present invention is a computer aided design (CAD) system in which graphic drawings are generated by the user selecting and placing figures representing objects such as walls and doors on a screen. This is accomplished using a command selecting unit that selects a command for placing an object of a desired shape in a desired position. Once the command is selected a parameter managing unit is engaged. This parameter managing unit holds parameters used to execute the selected command and also displays values set for the parameters in a parameter field on a display screen. The user may also enter desired values for the parameters using a parameter entering unit. In response to a user request to execute a command, a command executing unit determines the position and shape of the object using the values set for the parameters, and places the object in the proper location of the drawing display area.
Inventors: | Matsushita; Takeshi (Kawasaki, JP); Ichimura; Hiroshi (Nagano, JP); Hirayama; Yukio (Kawasaki, JP); Shomura; Chizuru (Nagano, JP) |
Assignee: | Fujitsu Limited (Kawasaki, JP) |
Appl. No.: | 744985 |
Filed: | November 7, 1996 |
Mar 01, 1996[JP] | 8-044382 |
Current U.S. Class: | 345/441 |
Intern'l Class: | G06F 015/00 |
Field of Search: | 345/440,441,433,438,117,118 |
5197120 | Mar., 1993 | Saxton et al. | 395/139. |
5299307 | Mar., 1994 | Young | 395/161. |
5623583 | Apr., 1997 | Nishino | 395/120. |